diff --git a/lib/rules/multiline-ternary.js b/lib/rules/multiline-ternary.js
index 1df90b6feb83..ef29c22f01a2 100644
--- a/lib/rules/multiline-ternary.js
+++ b/lib/rules/multiline-ternary.js
@@ -27,38 +27,23 @@ module.exports = {
                 enum: ["always", "always-multiline", "never"]
             }
         ],
+
         messages: {
             expectedTestCons: "Expected newline between test and consequent of ternary expression.",
             expectedConsAlt: "Expected newline between consequent and alternate of ternary expression.",
             unexpectedTestCons: "Unexpected newline between test and consequent of ternary expression.",
             unexpectedConsAlt: "Unexpected newline between consequent and alternate of ternary expression."
-        }
+        },
+
+        fixable: "whitespace"
     },
 
     create(context) {
+        const sourceCode = context.getSourceCode();
         const option = context.options[0];
         const multiline = option !== "never";
         const allowSingleLine = option === "always-multiline";
 
-        //--------------------------------------------------------------------------
-        // Helpers
-        //--------------------------------------------------------------------------
-
-        /**
-         * Tests whether node is preceded by supplied tokens
-         * @param {ASTNode} node node to check
-         * @param {ASTNode} parentNode parent of node to report
-         * @param {boolean} expected whether newline was expected or not
-         * @returns {void}
-         * @private
-         */
-        function reportError(node, parentNode, expected) {
-            context.report({
-                node,
-                messageId: `${expected ? "expected" : "unexpected"}${node === parentNode.test ? "TestCons" : "ConsAlt"}`
-            });
-        }
-
         //--------------------------------------------------------------------------
         // Public
         //--------------------------------------------------------------------------
@@ -70,11 +55,55 @@ module.exports = {
 
                 if (!multiline) {
                     if (!areTestAndConsequentOnSameLine) {
-                        reportError(node.test, node, false);
+                        context.report({
+                            node: node.test,
+                            messageId: "unexpectedTestCons",
+                            fix: fixer => {
+                                const testToken = astUtils.isParenthesised(sourceCode, node.test)
+                                    ? sourceCode.getTokenAfter(node.test)
+                                    : node.test;
+
+                                const consequentToken = astUtils.isParenthesised(sourceCode, node.consequent)
+                                    ? sourceCode.getTokenBefore(node.consequent)
+                                    : node.consequent;
+
+                                return (
+                                    fixer.replaceTextRange(
+                                        [
+                                            testToken.range[1],
+                                            consequentToken.range[0]
+                                        ],
+                                        " ? "
+                                    )
+                                );
+                            }
+                        });
                     }
 
                     if (!areConsequentAndAlternateOnSameLine) {
-                        reportError(node.consequent, node, false);
+                        context.report({
+                            node: node.consequent,
+                            messageId: "unexpectedConsAlt",
+                            fix: fixer => {
+                                const consequentToken = astUtils.isParenthesised(sourceCode, node.consequent)
+                                    ? sourceCode.getTokenAfter(node.consequent)
+                                    : node.consequent;
+
+                                const alternateToken = astUtils.isParenthesised(sourceCode, node.alternate)
+                                    ? sourceCode.getTokenBefore(node.alternate)
+                                    : node.alternate;
+
+                                return (
+                                    fixer.replaceTextRange(
+                                        [
+                                            consequentToken.range[1],
+                                            alternateToken.range[0]
+                                        ],
+                                        " : "
+                                    )
+                                );
+                            }
+                        });
                     }
                 } else {
                     if (allowSingleLine && node.loc.start.line === node.loc.end.line) {
@@ -82,11 +111,55 @@ module.exports = {
                     }
 
                     if (areTestAndConsequentOnSameLine) {
-                        reportError(node.test, node, true);
+                        context.report({
+                            node: node.test,
+                            messageId: "expectedTestCons",
+                            fix: fixer => {
+                                const testToken = astUtils.isParenthesised(sourceCode, node.test)
+                                    ? sourceCode.getTokenAfter(node.test)
+                                    : node.test;
+
+                                const consequentToken = astUtils.isParenthesised(sourceCode, node.consequent)
+                                    ? sourceCode.getTokenBefore(node.consequent)
+                                    : node.consequent;
+
+                                return (
+                                    fixer.replaceTextRange(
+                                        [
+                                            testToken.range[1],
+                                            consequentToken.range[0]
+                                        ],
+                                        "\n? "
+                                    )
+                                );
+                            }
+                        });
                     }
 
                     if (areConsequentAndAlternateOnSameLine) {
-                        reportError(node.consequent, node, true);
+                        context.report({
+                            node: node.consequent,
+                            messageId: "expectedConsAlt",
+                            fix: fixer => {
+                                const consequentToken = astUtils.isParenthesised(sourceCode, node.consequent)
+                                    ? sourceCode.getTokenAfter(node.consequent)
+                                    : node.consequent;
+
+                                const alternateToken = astUtils.isParenthesised(sourceCode, node.alternate)
+                                    ? sourceCode.getTokenBefore(node.alternate)
+                                    : node.alternate;
+
+                                return (
+                                    fixer.replaceTextRange(
+                                        [
+                                            consequentToken.range[1],
+                                            alternateToken.range[0]
+                                        ],
+                                        "\n: "
+                                    )
+                                );
+                            }
+                        });
                     }
                 }
             }
diff --git a/tests/lib/rules/multiline-ternary.js b/tests/lib/rules/multiline-ternary.js
index a8d2ef6eaa6d..d5fde0974f85 100644
--- a/tests/lib/rules/multiline-ternary.js
+++ b/tests/lib/rules/multiline-ternary.js
@@ -55,6 +55,7 @@ ruleTester.run("multiline-ternary", rule, {
         // default "always"
         {
             code: "a ? b : c",
+            output: "a\n? b\n: c",
             errors: [{
                 messageId: "expectedTestCons",
                 line: 1,
@@ -68,6 +69,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a\n? b : c",
+            output: "a\n? b\n: c",
             errors: [{
                 messageId: "expectedConsAlt",
                 line: 2,
@@ -76,6 +78,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? b\n: c",
+            output: "a\n? b\n: c",
             errors: [{
                 messageId: "expectedTestCons",
                 line: 1,
@@ -84,6 +87,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? (b ? c : d) : e",
+            output: "a\n? (b\n? c\n: d)\n: e",
             errors: [{
                 messageId: "expectedTestCons",
                 line: 1,
@@ -107,6 +111,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b ? c : d) :\ne",
+            output: "a ?\n(b\n? c\n: d) :\ne",
             errors: [{
                 messageId: "expectedTestCons",
                 line: 2,
@@ -120,6 +125,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? (b\n? c\n: d) : e",
+            output: "a\n? (b\n? c\n: d)\n: e",
             errors: [{
                 messageId: "expectedTestCons",
                 line: 1,
@@ -133,6 +139,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b? c\n: d) : e",
+            output: "a ?\n(b\n? c\n: d)\n: e",
             errors: [{
                 messageId: "expectedConsAlt",
                 line: 2,
@@ -146,6 +153,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b\n? c : d) : e",
+            output: "a ?\n(b\n? c\n: d)\n: e",
             errors: [{
                 messageId: "expectedConsAlt",
                 line: 2,
@@ -159,6 +167,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b\n? c\n : d) : e",
+            output: "a ?\n(b\n? c\n : d)\n: e",
             errors: [{
                 messageId: "expectedConsAlt",
                 line: 2,
@@ -169,6 +178,7 @@ ruleTester.run("multiline-ternary", rule, {
         // "always"
         {
             code: "a ? b : c",
+            output: "a\n? b\n: c",
             options: ["always"],
             errors: [{
                 messageId: "expectedTestCons",
@@ -183,6 +193,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a\n? b : c",
+            output: "a\n? b\n: c",
             options: ["always"],
             errors: [{
                 messageId: "expectedConsAlt",
@@ -192,6 +203,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? b\n: c",
+            output: "a\n? b\n: c",
             options: ["always"],
             errors: [{
                 messageId: "expectedTestCons",
@@ -201,6 +213,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? (b ? c : d) : e",
+            output: "a\n? (b\n? c\n: d)\n: e",
             options: ["always"],
             errors: [{
                 messageId: "expectedTestCons",
@@ -225,6 +238,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b ? c : d) :\ne",
+            output: "a ?\n(b\n? c\n: d) :\ne",
             options: ["always"],
             errors: [{
                 messageId: "expectedTestCons",
@@ -239,6 +253,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? (b\n? c\n: d) : e",
+            output: "a\n? (b\n? c\n: d)\n: e",
             options: ["always"],
             errors: [{
                 messageId: "expectedTestCons",
@@ -253,6 +268,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b? c\n: d) : e",
+            output: "a ?\n(b\n? c\n: d)\n: e",
             options: ["always"],
             errors: [{
                 messageId: "expectedConsAlt",
@@ -267,6 +283,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b\n? c : d) : e",
+            output: "a ?\n(b\n? c\n: d)\n: e",
             options: ["always"],
             errors: [{
                 messageId: "expectedConsAlt",
@@ -281,6 +298,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b\n? c\n : d) : e",
+            output: "a ?\n(b\n? c\n : d)\n: e",
             options: ["always"],
             errors: [{
                 messageId: "expectedConsAlt",
@@ -292,6 +310,7 @@ ruleTester.run("multiline-ternary", rule, {
         // "always-multiline"
         {
             code: "a\n? b : c",
+            output: "a\n? b\n: c",
             options: ["always-multiline"],
             errors: [{
                 messageId: "expectedConsAlt",
@@ -301,6 +320,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? b\n: c",
+            output: "a\n? b\n: c",
             options: ["always-multiline"],
             errors: [{
                 messageId: "expectedTestCons",
@@ -310,6 +330,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a &&\nb ? c : d",
+            output: "a &&\nb\n? c\n: d",
             options: ["always-multiline"],
             errors: [{
                 messageId: "expectedTestCons",
@@ -324,6 +345,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? b +\nc : d",
+            output: "a\n? b +\nc\n: d",
             options: ["always-multiline"],
             errors: [{
                 messageId: "expectedTestCons",
@@ -338,6 +360,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? b : c +\nd",
+            output: "a\n? b\n: c +\nd",
             options: ["always-multiline"],
             errors: [{
                 messageId: "expectedTestCons",
@@ -352,6 +375,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b ? c : d) : e",
+            output: "a ?\n(b ? c : d)\n: e",
             options: ["always-multiline"],
             errors: [{
                 messageId: "expectedConsAlt",
@@ -361,6 +385,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? (b ? c : d) :\ne",
+            output: "a\n? (b ? c : d) :\ne",
             options: ["always-multiline"],
             errors: [{
                 messageId: "expectedTestCons",
@@ -370,6 +395,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? (b\n? c\n: d) : e",
+            output: "a\n? (b\n? c\n: d)\n: e",
             options: ["always-multiline"],
             errors: [{
                 messageId: "expectedTestCons",
@@ -384,6 +410,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b ? c\n: d) : e",
+            output: "a ?\n(b\n? c\n: d)\n: e",
             options: ["always-multiline"],
             errors: [{
                 messageId: "expectedConsAlt",
@@ -398,6 +425,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b\n? c : d) : e",
+            output: "a ?\n(b\n? c\n: d)\n: e",
             options: ["always-multiline"],
             errors: [{
                 messageId: "expectedConsAlt",
@@ -412,6 +440,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b\n? c\n : d) : e",
+            output: "a ?\n(b\n? c\n : d)\n: e",
             options: ["always-multiline"],
             errors: [{
                 messageId: "expectedConsAlt",
@@ -423,6 +452,7 @@ ruleTester.run("multiline-ternary", rule, {
         // "never"
         {
             code: "a\n? b : c",
+            output: "a ? b : c",
             options: ["never"],
             errors: [{
                 messageId: "unexpectedTestCons",
@@ -432,6 +462,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? b\n: c",
+            output: "a ? b : c",
             options: ["never"],
             errors: [{
                 messageId: "unexpectedConsAlt",
@@ -441,6 +472,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b ? c : d) :\ne",
+            output: "a ? (b ? c : d) : e",
             options: ["never"],
             errors: [{
                 messageId: "unexpectedTestCons",
@@ -455,6 +487,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? (b\n? c\n: d) : e",
+            output: "a ? (b ? c : d) : e",
             options: ["never"],
             errors: [{
                 messageId: "unexpectedTestCons",
@@ -469,6 +502,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b? c\n: d) : e",
+            output: "a ? (b? c : d) : e",
             options: ["never"],
             errors: [{
                 messageId: "unexpectedTestCons",
@@ -483,6 +517,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b\n? c : d) : e",
+            output: "a ? (b ? c : d) : e",
             options: ["never"],
             errors: [{
                 messageId: "unexpectedTestCons",
@@ -497,6 +532,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ?\n(b\n? c\n : d) : e",
+            output: "a ? (b ? c : d) : e",
             options: ["never"],
             errors: [{
                 messageId: "unexpectedTestCons",
@@ -516,6 +552,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a ? (b\n? c\n: d)\n: e",
+            output: "a ? (b ? c : d) : e",
             options: ["never"],
             errors: [{
                 messageId: "unexpectedConsAlt",
@@ -535,6 +572,7 @@ ruleTester.run("multiline-ternary", rule, {
         },
         {
             code: "a\n?\n(b\n?\nc\n:\nd)\n:\ne",
+            output: "a ? (b ? c : d) : e",
             options: ["never"],
             errors: [{
                 messageId: "unexpectedTestCons",